JPH08307564A - Mail transmitting method and mail receiver - Google Patents

Abstract

PURPOSE: To prevent a telephone set from ringing without detecting a CNG signal by a mail receiver when a mail is transmitted from a center to be a mail transmission side via a public line by receiving the mail transmitted from the center when the both of a calling signal and the transmitter identification signal of the center are received and ringing the telephone set when only the calling signal is received. CONSTITUTION: When a center 1 originates a call to a mail receiver 10 through a public line 2, the public line 2 transmits a calling signal and the transmitter identification signal of the center 1 to the mail receiver 10. When the mail receiver 10 receives both of the calling signal and the transmitter identification signal of the center 1, the mail transmitted from the center 1 is received. When only the calling signal is received, a telephone set 3 is rung. Therefore, the telephone set 3 can be prevented from ringing without detecting a CNG signal by the mail receiver 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mail sending method and a mail receiving apparatus for sending a mail from a center which is a mail sending side via a public line, and in particular, a so-called so-called telephone which does not ring a telephone connected to the mail receiving apparatus. The present invention relates to a mail sending method and a mail receiving device for sending a mail without ringing.

[0002]

2. Description of the Related Art Generally, an analog line and a facsimile communication network (F net) can be considered as a public line for transmitting mail from a center. In this case, 16Hz is used on the analog line when the line calls the called side,
1300 Hz is used for F-net. Here, as a method of connecting the mail receiving device and the telephone to the same line so that the telephone does not ring when receiving a call,
Non-ringing for F-net (1300 Hz) and pseudo non-ringing for analog line (16 Hz) are known.

Non-ringing is for facsimile only, and when 1300 Hz is received, only the mail receiving device responds (closes the line) and the telephone does not respond. On the other hand, in the pseudo non-ringing method, when 16 Hz is received, the mail receiving device first responds (closes the line) to establish a communication path with the other party and detect the CNG signal from the other party. If the other party judges whether it is a telephone that does not output a CNG signal or a facsimile that outputs a CNG signal, and if it is judged as a facsimile, it shifts to facsimile communication. Ring the phone by sending a ringing signal.

[0004]

A first object of the present invention is to ring a telephone without a CNG signal being detected by a mail receiving device when a mail is transmitted from a center which is a mail transmitting side through a public line. It is to provide a new mail transmission method that can be prevented.

A second object of the present invention is to prevent the telephone from ringing without detecting a CNG signal when receiving a mail transmitted from a center which is a mail transmitting side via a public line. It is to provide a new mail receiving device.

[0006]

The first object of the present invention is to provide, when a center calls a mail receiving device to a public line, the public line sends a call signal to the mail receiving device and the center. A sender identification signal is transmitted, and when the mail receiving device receives both the calling signal and the sender identification signal of the center, the mail sent from the center is received, while only the calling signal is received. This is achieved by the first means of ringing the telephone in some cases.

The second purpose is to detect a calling signal sent from a public line and a caller identification signal of the center when the center is a calling party, and to detect the calling signal and the calling of the center by the detecting means. Receives the mail sent from the center when both of the person identification signals are detected,
On the other hand, it is achieved by a second means comprising a control means for controlling the telephone to ring when receiving only the call signal.

[0008]

According to the mail transmitting method of the first means, when the center calls the mail receiving device for the public line, the public line calls the mail receiving device and the caller identification of the center. A signal is sent, and when the mail receiving device receives both the calling signal and the caller identification signal of the center, the mail sent from the center is received.
Since the telephone rings when only the call signal is received, it is possible to prevent the telephone from ringing without the mail receiving device detecting the CNG signal.

According to the mail receiving device of the second means, when the center is the sender, a detecting means for detecting the call signal sent from the public line and the caller identification signal of the center are provided. When both the caller identification signal is detected, the mail sent from the center is received, and on the other hand, when only the call signal is received, the telephone is rung, so that the mail receiving device does not detect the CNG signal. Can be turned off.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a block diagram showing an embodiment of a center, a public network and a mail receiving device according to the present invention, FIG. 2 is an explanatory diagram showing a call signal transmitted from the public network of FIG. 1, and FIG. 3 is FIG. FIG. 4 is a flowchart for explaining the operation of the mail receiving device, and FIG. 4 is an explanatory diagram showing a communication sequence between the center of FIG. 1, the public network and the mail receiving device.

In FIG. 1, the center 1 on the mail transmitting side transmits image data, code data, and voice data as an electronic mail to the mail receiving device 10 via the public network 2. Here, the public network 2 sends only a 16 Hz call signal that sounds for 1 second and pauses for 2 seconds as shown in FIG. 2 (a) at the time of a normal incoming call to the mail receiving device 10, while at the time of an incoming call from the center 1. 16 as shown in FIG.
The caller signal of Hz and the caller telephone number (caller ID) are transmitted as an example of the caller identification signal of the center 1. Note that, in the format shown in FIG. 2B, the cola ID is inserted in the pause section of the calling signal, but this is an example. For example, the cola ID is inserted at the beginning of the calling signal or every several cycles of the calling signal. May be.

The mail receiving device 10 includes a circuit closing / opening relay 11, a communication control unit 12, a memory 13, a printer 14, a control unit 15, a 16 Hz / cola ID detection unit 16, and a DTMF (Dual). Tone Multi-Frequency) detector 17, an ID transmitter 18, a 16 Hz transmitter 19, an off-hook detector 20, and the like. It should be noted that FIG. 1 shows circuits necessary only for incoming calls, and does not show, for example, dial signal sending circuits for outgoing calls.

The relay 11 has contacts A, B and C and is controlled by the control unit 15. The control unit 15 controls the entire mail receiving apparatus 10 and has a memory in which the caller telephone number (cola ID) of the center 1 is stored in advance. The common contact C of the relay 11 is connected to the public network 2 side, and the contact A
Is connected to the communication control unit 12, the DTMF detection unit 17, and the ID transmission unit 18, and the contact B is the telephone (TEL) 3 and 16H.
It is connected to the z transmitter 19 and the off-hook detector 20.

At the contact point C on the public network 2 side, 16 Hz cola I
D detection unit 16 is connected, 16Hz / cola ID detection unit 1
6 is a 16 Hz, cola I transmitted from the public network 2 when receiving a call.
D is detected, and each detection signal is sent to the control unit 15. The communication control unit 12 executes a necessary communication protocol with the center 1, and the memory 13 is used to store the mail received from the center 1. The printer 14 is the memory 13
It is used to print out the image data (after conversion to font in the case of code data) stored in
In the case of voice mail, the voice signal can be stored in the memory 13 and reproduced by the handset of the telephone 3.

The DTMF detection section 17 detects the DTMF signal transmitted from the center 1 and outputs the detection signal to the control section 15.
Further, the ID transmitter 18 transmits the ID signal to the center 1 under the control of the controller 15. Where these D
The TMF signal and the ID signal are sent to the center 1 and the mail receiving device 10.
Is a protocol for transmitting mail, and the present invention is not limited to such a protocol. In addition,
By exchanging the DTMF signal, the ID signal, and the signal of another format with the change of the caller telephone number of the center 1, the caller telephone number (caller ID) of the center 1 prestored in the control unit 15 is transmitted to the center. It can be rewritten from 1. The 16 Hz transmitter 19 is controlled to 16H by the control of the controller 15.
By sending a call signal of z to the telephone 3, the telephone 3
When the off-hook detector 20 detects the off-hook of the telephone 3, the off-hook detector 20 sends the detection signal to the controller 15.

The control unit 15 particularly performs control as shown in FIG. 3, and the control operation of the control unit 15 will be described below with reference to FIG.
Will be described with reference to. In Fig. 3, 16H during standby
When the z-cola ID detection unit 16 detects a call signal of 16 Hz from the public network 2, steps S1 to S2
Then, the line is closed by connecting the relay 11 to the contact A side. Next, 16Hz / cola ID detector 16
Determines whether or not the caller side is the center 1 by determining whether or not the caller ID from the public network 2 is detected (step S3). If detected, the process proceeds to step S4 and thereafter,
On the other hand, if not detected, the process branches to step S7 and thereafter. In steps S4 and below, first, the DTMF detection unit 17
Waits until it detects the DTMF signal (step S
4) When the DTMF signal is detected, the ID transmitter 18 transmits the ID signal to the center 1 (step S5),
Then, the mail sent from the center 1 is received (step S6). Further, when the reception of the mail is completed, the relay 11 controls the line to open and returns to the standby state. On the other hand, in step S7 and subsequent steps, the 16 Hz calling unit 19 sends a call signal of 16 Hz to the telephone 3 to ring the telephone 3 (step S7) and wait for off-hook (step S8). When the off-hook detector 20 detects the off-hook of the telephone 3, the relay 1
1 is switched from contact A to contact B (step S9),
The call is established (step S10). When the call ends, the relay 11 controls the line to open and returns to the standby state.

Next, the communication sequence of the center 1, the public network 2 and the mail receiving device 10 will be described with reference to FIG.
The center 1 sends a mail via the public network 2 to the mail receiving device 1
When transmitting to 0, first, the center 1 closes the public network 2 and calls the mail receiving apparatus 10 to the public network 2 with a DP signal or a PB (DTMF) signal, and then the public network 2 receives the mail receiving apparatus. The mail receiving apparatus 10 is called by sending a call signal of 16 Hz and a caller ID of the center 1 to the mail receiving apparatus 10 as shown in FIG. Also, the public network 2 sends a ringback tone (RB) to the center 1 during this call.
Send T).

Therefore, the mail receiving device 10 performs the processing as shown in FIG.
When both D are detected and the line is closed, the communication path between the center 1 and the mail receiving device 10 is established. When the center 1 sends a DTMF signal to the mail receiving device 10 via this communication path and the mail receiving device 10 sends an ID signal to the center 1 to recognize each other, the center 1 A mail is transmitted from 1 to the mail receiving device 10.

As described above, in the mail transmitting method in the above embodiment, when the center 1 calls the mail receiving device 10 to the public network 2, the public network 2 calls the mail receiving device 10. Signal and the caller identification signal of the center 1, and when the mail receiving device 10 receives both the calling signal and the caller identification signal of the center 1, the center 1
Since the telephone 3 is made to ring when the mail sent from is received and the call signal alone is received, the mail receiving device 10 can prevent the telephone 3 from ringing without detecting the CNG signal. .

Further, in the mail receiving device 10 in the above embodiment, when the center 1 is the originator, the call signal sent by the public network 2 and the caller identification signal of the center 1 are detected by 16 Hz / cola ID detection. Part 16 and 16 Hz
When the cola ID detection unit 16 detects both the call signal and the caller identification signal of the center 1, the mail sent from the center 1 is received, and on the other hand, when only the call signal is received, the telephone 3 is ringed. Thus, the mail receiving device 10 can prevent the telephone 3 from ringing without detecting the CNG signal.

[0021]

According to the invention of claim 1, when the center calls the mail receiving device to the public line, the public line calls the mail receiving device and the caller identification signal of the center. When the mail receiving device receives both the calling signal and the caller identification signal of the center, the mail sent from the center is received, while the phone rings when only the calling signal is received. ,
It is possible to prevent the mail receiving device from ringing the telephone without detecting the CNG signal.

According to the second aspect of the present invention, there is provided detection means for detecting a call signal sent from the public line and a caller identification signal of the center when the center is the caller, and the call signal and the caller identification of the center are provided. When both of the signals are detected, the mail sent from the center is received, while when only the ringing signal is received, the phone rings.
It is possible to prevent the mail receiving device from ringing the telephone without detecting the CNG signal.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a center, a public network and a mail receiving device according to the present invention.

FIG. 2 is an explanatory diagram showing a call signal transmitted from the public network of FIG.

3 is a flowchart for explaining the operation of the mail receiving device in FIG.

FIG. 4 is an explanatory diagram showing a communication sequence between the center shown in FIG. 1, a public network, and a mail receiving device.

[Explanation of symbols]

 1 Center 2 Public Network 3 Telephone 10 Mail Receiving Device 11 Relay 12 Communication Control Section 13 Memory 14 Printer 15 Control Section 16 16Hz / Cola ID Detection Section 17 DTMF Detection Section 18 ID Transmission Section 19 16Hz Transmission Section 20 Off-hook Detection Section

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yuuo Nomura 1-7 Yukiya Otsuka-cho, Ota-ku, Tokyo Alps Electric Co., Ltd. (72) Yasuhiko Iwane 1-7 Yukiya Otsuka-cho, Ota-ku, Tokyo Alps Electric Co., Ltd. (72) Inventor Masahiko Mori 1-7 Yukiya Otsuka-cho, Ota-ku, Tokyo Alps Electric Co., Ltd.

Claims (2)

[Claims] 1. When the center calls a mail receiving device to a public line, the public line sends a calling signal and a caller identification signal of the center to the mail receiving device, and the mail receiving device receives the mail. The device receives a mail sent from the center when the device receives both the calling signal and the caller identification signal of the center, and makes the telephone ring when receiving only the calling signal. How to send email. 2. A detection means for detecting a call signal sent from a public line and a caller identification signal of the center when the center is a caller, and the detection means both a call signal and a caller identification signal of the center. A mail receiving device, comprising: a control means for receiving a mail sent from the center when detecting a call, and controlling the telephone to ring when receiving only a calling signal.